CVE-2026-42858

May 12, 2026, 5:16 p.m.

8.5
High

Description

Open edX Platform enables the authoring and delivery of online learning at any scale. The sync_provider_data endpoint in SAMLProviderDataViewSet allows authenticated Enterprise Admin users to supply an arbitrary URL via the metadata_url POST parameter. This URL is passed directly to requests.get() in fetch_metadata_xml() without any URL validation, IP filtering, or scheme enforcement. An attacker with Enterprise Admin privileges can force the server to make HTTP requests to internal network services, cloud metadata endpoints (e.g., AWS 169.254.169.254), or other attacker-controlled destinations. This vulnerability is fixed by commit 6fda1f120ff5a590d120ae1180185525f399c6d0 and 70a56246dd9c9df57c596e64bdd8a11b1d9da054.

Product(s) Impacted

Vendor Product Versions
Edx
  • Open Edx
  • *

Weaknesses

Common security weaknesses mapped to this vulnerability.

CWE-918
Server-Side Request Forgery (SSRF)
The web server receives a URL or similar request from an upstream component and retrieves the contents of this URL, but it does not sufficiently ensure that the request is being sent to the expected destination.

*CPE(s)

Affected systems and software identified for this CVE.

Type Vendor Product Version Update Edition Language Software Edition Target Software Target Hardware Other Information
a edx open_edx / / / / / / / /

References

https://github.com/openedx/openedx-platform/commit/6fda1f120ff5a590d120ae1180185525f399c6d0
https://github.com/openedx/openedx-platform/commit/70a56246dd9c9df57c596e64bdd8a11b1d9da054
https://github.com/openedx/openedx-platform/security/advisories/GHSA-328g-7h4g-r2m9
https://github.com/openedx/openedx-platform/security/advisories/GHSA-328g-7h4g-r2m9

Tags

[email protected]
CWE-918
2026-05-11
CVE-2026-42858

CVSS Score

8.5 / 10

CVSS Data - 3.1

  • Attack Vector: NETWORK
  • Attack Complexity: LOW
  • Privileges Required: LOW
  • Scope: CHANGED
  • Confidentiality Impact: HIGH
  • Integrity Impact: LOW
  • Availability Impact: NONE

    • CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:N

    View Vector String

Timeline

Published: May 11, 2026, 6:16 p.m.
Last Modified: May 12, 2026, 5:16 p.m.

Status : Undergoing Analysis

CVE has been recently published to the CVE List and has been received by the NVD.

More info

Source

[email protected]

*Disclaimer: Some vulnerabilities do not have an associated CPE. To enhance the data, we use AI to infer CPEs based on CVE details. This is an automated process and might not always be accurate.